Faithfull SDS Max chisel steels are produced to provide high performance in all types of modern large capacity drilling and hammer drilling machines. Manufactured using traditional forging skills such as hammer work on chisels and drop stamp forging of cutting blades, they fit the most popular machines used in the UK. Type: Chisel. Fitting: SDS Max. FAIMAXC300. Length: 300 mm. Width: 25 mm.